Question: When was Nelson Mandela Bay Metropolitan Municipality twinned adminsitrative in Gothenburg?
Paraphrase: On which date was Nelson Mandela Bay Metropolitan Municipality twinned adminsitrative in Gothenburg?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q1856565 p:P190 ?s . ?s ps:P190 wd:Q25287 . ?s pq:P580 ?value}